142 Duane Street

Not all luxury living in 21st century downtown Manhattan is a glass-clad cliche, and this sprawling, light-filled Tribeca penthouse is proof. On the highest floors of a five-story 1920s building at 142 Duane Street, this is a triplex to be reckoned with at 7,200 square feet plus two private outdoor terraces. Part of what makes this $16.95 million condop (a co-op with less stringent condo-like rules) so special is a showstopping contemporary gut renovation by architecture firm Triarch in 2005, with natural wood paneling inspired by modernist architects like Jean Michel Frank, Adolf Loos and Bruno Paul.